<template>
     <div class="app">
        <h1>你好！</h1>
     </div>
</template>

<script lang="ts">
    
    export default {
        name: 'App'  //组件名
    }
 
</script>

<style>
    .app{
        background-color: white;
        box-shadow: 0 0 10px rgba(0,0,0,0.1);
        border-radius: 10px;
        padding: 20px;

    }


</style>